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Yu, Q. X; Pavao, R; Debastiani, V. R; Oset, E
The European physical journal. C, Particles and fields, 02/2019, Letnik: 79, Številka: 2Journal Article
In this work we study several Formula omitted and Formula omitted states dynamically generated from the meson-baryon interaction in coupled channels, using an extension of the local hidden gauge approach in the Bethe-Salpeter equation. These molecular states appear as poles of the scattering amplitudes, and several of them can be identified with the experimentally observed Formula omitted states, including the Formula omitted, Formula omitted, Formula omitted, Formula omitted and Formula omitted. Also, for the recently reported Formula omitted state, we find two poles with masses and widths remarkably close to the experimental data, for both the Formula omitted and Formula omitted sectors.
